Hi,
I just wanted to report how I got Armbian 23.8.1 working on my Khadas VIM3 Pro board.
It was not an out-of-the-box success story, but after a few nights of debugging, I found the cause and fix of the issue.
Hopefully this post will save debugging time of somebody else and maybe this can be fixed in future Armbian releases.
The issue is as follows: After flashing the Armbian 23.8.1 image to the VIM3's internal EMMC storage, the SBC boots fine initially.